|
Incident ID |
NH00562-3588 |
|
Dam Name |
SHANNON LAKE DAM |
|
Downstream Hazard Potential |
S |
|
State |
NH |
|
Incident Date |
06/28/2023 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Spillway Erosion/head Cutting |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
erosion of earthen auxiliary spillway |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
None |
|
Economic Damages (in $) |
$1 to $100,000 |
|
Volume released at failure (ac-ft) |
|
|
Response |
|
|
Additional Remarks or Updates |
|
|
Incident Time |
|
|
Incident Duration |
1 Day |
|
Incident Report Produced |
No |
|
Information Sources |
NH DES |
|
Owner Type |
P |
|
Dam Type |
RE |
|
Primary Purpose(s) |
R |
|
EAP |
N |
|
Year Completed |
1969 |
|
Year Modified |
0 |
|
Dam Height |
20 ft |
|
Max Storage (ac-ft) |
21 ac-ft |
|
Surface Area (acres) |
4 acres |
|
River Name |
SHANNON BROOK |
|
Latitude |
43.7322 |
|
Longitude |
-71.3225 |
|
Regulatory Agency(ies) |
NHDES DAM BUREAU |
|
NID Number |
NH00562 |
|
Attachments |
|
